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view src/SbpOperators/boundary_conditions/sat.jl @ 1991:7ead7a87af18 feature/grids/parameter_spaces/in
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author | Jonatan Werpers <jonatan@werpers.com> |
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date | Thu, 24 Apr 2025 09:05:30 +0200 |
parents | 77f192b05b1d |
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""" sat_tensors(op, grid, bc::BoundaryCondition; kwargs...) The penalty tensor and boundary operator used to construct a simultaneous-approximation-term for imposing `bc` related to `op`. For `penalty_tensor, L = sat_tensors(...)` then `SAT(u,g) = penalty_tensor*(L*u - g)` where `g` is the boundary data. """ function sat_tensors end """ sat(op, grid, bc::BoundaryCondition; kwargs...) Simultaneous-Approximation-Term for a general `bc` to `op`. Returns a function `SAT(u,g)` weakly imposing `bc` when added to `op*u`. Internally `sat_tensors(op, grid, bc; ...)` is called to construct the necessary parts for the SAT. """ function sat(op, grid, bc::BoundaryCondition; kwargs...) penalty_tensor, L = sat_tensors(op, grid, bc; kwargs...) return SAT(u, g) = penalty_tensor*(L*u - g) end